spoke with LAbcorp Billing department (Wendy K.) and she told me that the reason of why the patient labs was denied is b/c his insurance benefit package doesn 't cover the service.She said that our Provider from Westside doesn 't have to do nothing with this.We select the appropriate CPT codes and Dx Codes for this type of visit and also this is nothing related with any NPI number from our providers. I think the patient need to contact directly LABCORP billing department and spoke whith them about the bill.Labcorp and his payer need to work together on this since WFH don 't bill Labs to Labcorp.